Home / 25,653.42-35,416.43-19,555.78

Finding the Fourth Proportional to 25,653.42, 35,416.43 and 19,555.78

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Solution

The fourth proportional to 25,653.42, 35,416.43 and 19,555.78 is: 26,998.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,653.42 : 35,416.43 = 19,555.78 : x
  2. Step 2: Convert to fraction form
    25,653.42/35,416.43 = 19,555.78/x
  3. Step 3: Cross multiply
    25,653.42x = 35,416.43 × 19,555.78
  4. Step 4: Simplify right side
    25,653.42x = 692,595,913.47
  5. Step 5: Solve for x
    x = 692,595,913.47/25,653.42
  6. Step 6: Final answer
    x = 26,998.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.